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Air temperature: 49.1 (°F)
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(Updated: 04/26/2019, 03:30,
S-Mitte, Schwabenzentrum)
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Contribution of the different sectors to the reduction of CO2

The objective of the desired scenario is a 30 % reduction of CO2 for Stuttgart in 2005 as compared to the state of 1990. What has to be taken into account is the already accomplished reduction of CO2 emissions by about 7 % in 1995 (as compared to 1990). This reduction was basically the consequence of

As of today's knowledge, we can assume that the structure of power generation within the period under consideration will produce constant specific CO2 emission factors for all scenarios in the future. This is not supposed to be changed significantly by the fusion of TWS and Neckarwerke as the Neckarwerke's power generation structure also has a very high percentage of nuclear energy (about 75 %).

A final consideration of the scenarios shows that a 30 % reduction of CO2 (desired scenario) is theoretically possible in the field of energy supply and use (including traffic) in Stuttgart in 2005 (as compared to 1990). But only if all potential CO2 reduction possibilities in every field of action are exhausted.

Implementation rates were attributed to all individual measures of the energy sector within the minimum scenario, which take into account the currently valid framework requirements of the power economy and assess all measures according to their feasibility on the basis of legal aspects and political acceptance. Under these considerations, the range of measures for the traffic sector was reduced.

This leads to a relatively small CO2 reduction of about 17 % within the minimum scenario as compared to 1990. Compared with the development of the trend scenario, however, the reduction of CO2 emissions is almost doubled.

Development of CO2 emissions from final energy in Stuttgart according to different scenarios

The objective of a 30 % reduction of CO2 emissions for the traffic sector by 2005 as compared to the state of 1990 cannot be reached under the current legal conditions and without introducing rigorous measures for limiting motorized individual traffic in Stuttgart. On the basis of the measures of the minimum scenario, traffic-related CO2 emissions can only be reduced by a total of 17 % by 2005, including the expected effect from the conversion of whole fleets. Considering the additional measures of the desired scenario, of which some would cause significant costs, a CO2 reduction totalling "only" 21 % is possible by 2005. At best, the declared target can be reached in 2010 through the implementation of the measures from the desired scenario.

This means for the energy sector that above-average contributions are needed to fulfil the target. When previous contributions from the power/light and process heat sectors are also taken into account, it becomes clear that additional contributions must proceed from the sector of room heat supply.

For the electricity use (power/light) and process heat sector, the target is already considered fulfilled when the current state of CO2 emissions is going to be maintained for the next 10 to 15 years due to current structures in Stuttgart.


© City of Stuttgart, Office for Environmental Protection, Section of Urban Climatology